1. Izinto zokusetshenziswa ze-cellulose ether
I-cellulose ether yokwakhiwa iyi-polymer engeyona i-ionic encibilikayo emanzini enomthombo wayo:
I-Cellulose (i-pulp yokhuni noma i-cotton linter), ama-hydrocarbon ane-halogenated (i-methane chloride, i-ethyl chloride noma amanye ama-halide amade), ama-epoxy compounds (i-ethylene oxide, i-propylene oxide, njll.)
I-HPMC-Hydroxypropyl Methyl Cellulose Ether
I-HEC-Hydroxyethyl Cellulose Ether
I-HEMC-Hydroxyethyl Methyl Cellulose Ether
I-EHEC-Ethyl Hydroxyethyl Cellulose Ether
I-MC-methyl cellulose ether
2. Izakhiwo ze-cellulose ether
Izakhiwo ze-cellulose ethers zincike ku:
Izinga le-polymerization DP Inani lamayunithi e-glucose—i-viscosity
Izinto ezithatha indawo kanye nezinga lazo lokushintsha, izinga lokufana kokushintsha indawo —- nquma insimu yesicelo
Usayizi Wezinhlayiya—-Ukuncibilika
Ukwelashwa kwendawo (okungukuthi ukuncibilika okulibazisekile)—- isikhathi se-viscosity sihlobene nenani le-pH lesistimu
Izinga lokuguqulwa—-Thuthukisa ukumelana nokuwohloka kanye nokusebenza kahle kwe-cellulose ether.
3. Indima ye-cellulose ether - ukugcinwa kwamanzi
I-Cellulose ether iyinhlanganisela ye-polymer chain eyakhiwe amayunithi e-β-D-glucose. Iqembu le-hydroxyl ku-molecule kanye ne-athomu ye-oxygen ku-ether bond kwakha isibopho se-hydrogen ne-molecule yamanzi, emunca i-molecule yamanzi ebusweni be-polymer chain futhi ibambe ama-molecule. Ku-chain, ibambezela ukuhwamuka kwamanzi futhi imuncwa ungqimba lwesisekelo.
Izinzuzo ezinikezwa yizakhiwo zokugcina amanzi ze-cellulose ethers:
Asikho isidingo sokumanzisa ungqimba lwesisekelo, inqubo yokonga
ukwakhiwa okuhle
amandla anele
4. Indima ye-cellulose ether – umphumela wokuqina
I-cellulose ether ingandisa ukuhlangana phakathi kwezingxenye ze-motar esekelwe ku-gypsum, okubonakaliswa ngokwanda kokuvumelana kwe-motar.
Izinzuzo eziyinhloko ezinikezwa ukuqina kwama-cellulose ethers yilezi:
Nciphisa umlotha womhlabathi
Khulisa ukunamathela esisekelweni
Nciphisa ukugoba kwe-mortar
gcina udaka lulingana
5. Indima ye-cellulose ether – umsebenzi wobuso
I-cellulose ether iqukethe amaqembu athanda amanzi (amaqembu e-hydroxyl, ama-ether bond) kanye namaqembu athanda amanzi (amaqembu e-methyl, amaqembu e-ethyl, ama-glucose rings) futhi iyi-surfactant.
(Ukucindezeleka kwamanzi kungu-72mN/m, i-surfactant ingu-30mN/m, kanti i-cellulose ether ingu-HPC 42, HPMC 50, MC 56, HEC 69, CMC 71mN/m)
Izinzuzo eziyinhloko ezinikezwa umsebenzi wobuso be-cellulose ethers yilezi:
Umphumela wokungenisa umoya (ukuklwebheka okubushelelezi, ubuningi obumanzi obuphansi, i-modulus ethambile, ukumelana nokuqandisa)
Ukumanzisa (kwandisa ukunamathela ku-substrate)
6. Izidingo ze-gypsum yokuplasta okulula ye-cellulose ether
(1). Ukugcinwa kwamanzi okuhle
(2). Ukusebenza kahle, akukho ukugaywa
(3). Ukuklwebhana okushelelayo
(4). Ukumelana okunamandla nokuwohloka
(5). Izinga lokushisa lejeli liphakeme kune-75°C
(6). Izinga lokuqedwa okusheshayo
(7). Kungcono ukuba nekhono lokufaka umoya nokuqinisa amabhamuza omoya ku-mortar.
11. Indlela yokunquma umthamo we-cellulose ether
Ukuze kufakwe ama-plaster, kuyadingeka ukugcina amanzi anele ku-mortar isikhathi eside ukuze kube nokusebenza kahle nokugwema ukuqhekeka kobuso. Ngesikhathi esifanayo, i-cellulose ether igcina inani elifanele lamanzi isikhathi eside ukuze i-mortar ibe nenqubo eqinile yokujiya.
Inani le-cellulose ether lincike ku:
Ukuqina kwe-cellulose ether
Inqubo yokukhiqizwa kwe-cellulose ether
Okuqukethwe Okungeziwe kanye Nokusatshalaliswa kwe-Cellulose Ether
Ukusatshalaliswa Kosayizi Wezinhlayiya ze-Cellulose Ether
Izinhlobo kanye nokwakheka kodaka olusekelwe ku-gypsum
Umthamo wokumunca amanzi wesendlalelo esiyisisekelo
Ukusetshenziswa Kwamanzi Ukuze Kusakazwe Okujwayelekile Kodaka Olusekelwe Ku-Gypsum
Isikhathi sokusetha udaka olusekelwe ku-gypsum
Ubukhulu bokwakha kanye nokusebenza kokwakha
Izimo zokwakha (njengokushisa, isivinini somoya, njll.)
Indlela yokwakha (ukuklwebha ngesandla, ukufutha ngomshini)
Isikhathi sokuthunyelwe: Jan-18-2023